| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small-sized and lightweight heat pump hot water supply machine. <P>SOLUTION: In this hot water supply machine, heat exchange is performed between a high-temperature refrigerant in a heat pump circuit 10 and water in a water circulating circuit 22 in a water-heat exchanger 11. This hot water supply machine is of an instantaneous type in which water introduced from a water supply pipe 16 is subjected to temperature rising by the water-heat exchanger 11, and supplied intact to a used terminal 27, whereby the conventional large-sized hot water storing tank is eliminated. Since heat of condensation enough to heat water cannot be generated until the pressure condition immediately after the operation start of the heat pump circuit 10 is stabilized, the hot water stored in a hot water supply tank 13 and water from the water-heat exchanger 11 are mixed and supplied for a short time of rise, whereby while the preset temperature is kept, the hot water supply tank 13 is reduced in size. <P>COPYRIGHT: (C)2008,JPO&INPIT |
